Normalized comparison

AWS API Gateway vs Vercel Payload & Timeout Limits

API Gateway HTTP APIs allow a 10 MB payload but only a 30-second integration; Vercel Functions allow smaller bodies and potentially much longer eligible execution.

Verified Aug 22, 2026AWS API GatewayVercel
Values are comparable only within the scope shown. Runtime, plan, model, invocation mode, and account-specific capacity can change the effective result.

Quick comparison

CriterionAWS API GatewayVercelComparability note
Integration/function timeAWS API Gateway30 secondsHTTP APIsAmazon Web ServicesVercel1,800 seconds (30 minutes)Pro and EnterpriseVercelA gateway integration wait and a function runtime maximum are different layers.
PayloadAWS API Gateway10 MBHTTP APIsAmazon Web ServicesVercel4.5 MBPayloads over the documented limit return FUNCTION_PAYLOAD_TOO_LARGE with status 413.VercelA request passing API Gateway can still fail a smaller downstream function limit.

Which is best for your requirement?

Choose AWS API Gateway when

Its documented integration/function time scope fits your measured workload and the caveats shown in the comparison.

Choose Vercel when

Its documented execution or account model better matches the exact requirement rather than a vendor-wide headline.

Validate before migration

Test payload, duration, throughput, concurrency, failure behavior, billing scope, and recovery with representative traffic.

Validate the decision with your workload

Before choosing between AWS API Gateway and Vercel, reproduce the comparison with the exact plans, models, regions, runtimes, and invocation paths you intend to operate. The reviewed rows cover integration/function time and payload; they do not turn different pricing, reliability, developer experience, or ecosystem tradeoffs into one universal score.

  1. Capture representative request sizes, token usage, duration, concurrency, storage, and failure behavior at realistic percentiles.
  2. Test the boundary and the recovery path on both candidates, including throttling, timeouts, partial failure, retries, and cost controls.
  3. Record which scoped observation drove the choice and recheck its official source before migration or a major traffic increase.

Official sources

Related

Inspect the underlying limits